Tracker and guide apparatus for traveling webs.



J. OCONNOR.

TRACKER AND GUIDE APPARATUS FOR TRAVELING WEBS.

APPLICATION FILED JAN. 4. I905. RENEWED DEC. 26,1914.

1 160 193. Patented Nov. 16, 1915. 3 SHEETSSHEET I.

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1. OCONNOR.

TRACKER AND GUIDE APPARATUS FOR TRAVELING WEBS. APPLICATIOR FILED JAN. 4. 1905'. RENEWED c. 26. 1914.

1,1 60, 1 93. Patented Nov. 16,1915.

3 SHEETSSH EET 2.

A J0 v 456 719.41; 56 V l IIIIIZ I! IVIIIIIIIIIIII Witnesses; fnz/erwor:

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A 76 121 By ditty J. OCONNOR.

APPARATUS FOR TRAVELING WEBS. KPPLICATION FILED JAN. 4. 1905. RENEWED DEC-.26. 19M.

' TRACKER AND GUIDE 1460,1913. 11116111611 Nov. 16,1915.

' 3 SHEETS-SHEET 3.

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' 1 61 6' //JV/I 175 1 186 M? 181- 3 122 157 UNITED PATENT JAMES OCONNOR, 0F NE'W YORK, N. Y., ASSIGNOR '10 AUTOPIANO 00., OF NEXWYOBK,

.iiiL-Y A CORPORATION OF NEW TBAGKER AND GUIDE APPARATUS FOR'TRAVELING N E135.

Specification of Letters Patent.

Patented Nov. 165, M215.

Application filed January 4, 1905, Serial No. 239,682. Renewed December 28, 1914. Serial No. 879,233.

T 0 all whom it may concern:

Be it known that 1, JAMES OCONNOR, a citizen of the United States, and resident of New York, in the county of New York and State of Ne v York, have invented certain new and useful l mprovementsin Tracker and Guide Apparatus for Traveling \Vebs, of which the following a full, clear, and exact specification.

' This invention relates to improved means for guiding a traveling sheet or web soas to keep it in proper operative relation to the mechanical devices with which it is employed, the object being to automatically maintain the sheet in proper relation to its associated devices by means of the margins of-the sheet. or web itself, without any perforation or cutting or other special preparati'on of the sheetv and without in anyway injuring the edges of the mostdelicate or fragile fabric.

Figure 1- of the drawings is a plan view of my preferred embodiment of this invention showing it as applied to the guiding of a perforated sheet for controlling the operation of self-playing musical instruments and similar machines." Fig. .2 is an end view of the apparatus in section through the line 2-2 ofoFig. 1. Fig. 3 is a plan view of a portion of the apparatus showing some of the .parts in a different position from that represented in 1. Figs. tto 7 inclusive are sectional side views of one set of the pneumatic operating devices showing them in four different positions. Figsr8 to 11.; are similar views of another set of the pneumatic operating devices. Fig. 12 is'a fragmentary plan view'in enlarged scale, of a part of the mechanism shown in Fig. .1. Fig. 13 is a side view of the partsof Fig. 12 in section in the line 13-13" of Fig-.12. Figs. 14, 15 and 16 are 'side viewsof three modifications of the pneumatic operating devices, all threeof the modifications being shown with their parts in the position occupied by them'when the sheet or web is traveling in its normal path. .Fig. 17 is a fragmentary view'showing a .nio'dified arrangement of the tracker apertures. F1g. 18 is a frag mentary view of a modified valve dGVlCQ.

The employment of a traveling sheet, orweb in connection with mechanical devices or web from its normal path of travel where by it is thrown out of proper lateral register with its associated devices. While this disarrangement is more or less troublesome wherever a traveling sheet or web is employed, it is particularly so in the case of that class of mechanical musical instruments which use a perforated sheet in connection with a tracker to control the action of note sounding devices, as in this class of instru ments it takes but a very slight divergence of the sheet from' its normal path to se riously impair the rendition of the music.

In my U. S. Patent No. 789053 of May 2, 1905 is shown, described and claimed that portion of the present apparatus which op erates to bring the sheetand the tracker again'into proper coincidence whenever any sidewise divergence of the sheet takes place. The means which accomplish this result consist of a pair of. pneumatic motors secured to opposite ends of the tracker bar. Each motor is provided with an arm extending from its movable leaf near the hinge end, which arm engages a collar on the winding shaft of the note sheet. The operation of these motors is inaugurated by means of two oppositely disposed special apertures placed or the other of the motors according to which of the two apertures is uncovered. The collapsing of the motor causes-the arm on the movable leaf to push .thewihding shaft in one .direction,'thus carrying the winding roll. in that direction, and with it the note sheet, thereby bringing the latter back into proper register with the tracker apertures.

If preferred, the tratker may be mounted to SlHfiT-"GIIClWlSG, and in that case a suitable abutment. 1s arranged I01 engagement with the motor arm,so that the collapsing of the motor shifts the tracker {inthe proper direction.

' The apparatus oftlie present invention is toward the center of the sheet when the sheet contracts, this keeping the two special apertures always just inside the traveling edges of the sheet, so that the sidewise divergence of the sheet will uncover one or the other of the apertures. v

The note sheet 18 is carried on the rolls 21 and 22 situated on opposite sides of the tracker 19, and is assumed to be traveling in the direction of the arrow 24, motion being imparted through the pulley 23 to the roll 22 by any suitable mechanism. The tracker I9 rests at its right. hand end in a channel provided for it in the block 55, which in turn is supported in the frame 27. The left hand end of the tracker 19 is I similarly supported in the block 56 which in turn is supported in the frame 28. The-supporting blocks 55 and 56 are provided with shelves 103 and 94:, upon which rest in suitable ways the sliding blocks 41 and 42, which .carry the apertures 39 and respectively.

' The strips 111 and 93 may be used if re- 5'5 interior of the motor bellows 33.

quired, to keep the sliding blocks in their ways. The apertures 39 and i0 are located so; that they are covered by the unperforated margins of the sheet 18 when it is traveling in its normal path, as shown in Fig. 1. As thus far described the apparatus is substantially as shown in the patent referred to, excepting that in the patent the special apertures :39 and 30 are adapted to be manually adjusted to suit different widthsof paper, whereas in the present inventions the corresponding apertures 39 and 10 are adapted to be adjusted automatically .by means, which will next be described. In that case the set screws 14 serve to hold the bearings 26 in a fixed position in the frame uprights.

The aperture 39 is connected by means of the tube 37 with customary primary pneumatic devices in the exhaust chest 20, to which is also connected the tube 35. leading to the This bellows is secured to the tracker 19 and is provided with anarm 31, the outer end of which is in contact with the lug 29 on the bearing 26, seated in a slot in the upright 27 and forming the journal ofthe right hand end of the shaft 25, to which the roll 21 is secured The aperture 10 is sirhilarly connected bymeans of the tube 38, 'the exhaust chest 16 and the tube 36 to the motor bellows 34:, also secured to the tracker. and similarly provided with an arm 32 which is in contact with the lug 30 on the left hand bearing 26 secured to the upright 28. The supporting block .55 is provided with an inner aperture'51 and an outer aperture aperture 51 is connected by means ofa tube 59 with the passage 69, leading to the in terior of the primary bellows 67 contained within the exhaust chamber 71 of the pri mary box 65. her 71 to a suitable exhausting apparatus. The movable leaf of. the bellows-67 supports the stem 78 of the valve 77 contained in the chamber 72, and resting upon and covering the opening 83, which leads from the chamber 71 to the chamber 72. A channel 80 which enters the chamber 72 over the valve 77 connects the chamber with" the outside air. A passage 79 connects the chamber 72 with the chamber 73, in which is situated a primary bellows 68 connected by the passage and the tube'60 with the inner aperture 52. The valve 81 rests upon and closes the opening 86 between the chamber 73 and the chamber 74, the valve being provided with a stem 85, the end of which is in contact with the movable leaf of the bellows 68. An opening 89 over the valve' 84 connects the chamber 74 with the outside air. From A tube 66 connects the chamanother part of the chamber 74 a tube 90 extends to the motor bellows 91 secured to the left hand end of the tracker 19.

The outer aperture 53 is connected by means of a tube 61 to the passage 128 leading tothe interior of the primary bellows 126 contained in the exhaust chamber 125 of the primary box 121. A. tube 113 connects the chamber with exhausting apparatus. The valve 133 is held by the bellows 126 when the latter is inflated, against the opening 138, the stem 1,32 of the valve carrying on its upper end the pallet 13%, A passage 137 which opens into the chamber 122 under the pallet 131 connects the chamber with the outside air. The chamber 125 contains also the primary bellows 127 connected by means of the passage 131, and the tube 62 with the outer aperture 5i. 'Thehellows 127 supports the valve stem 139 and when inflated keeps the valve 140 against the opening 111 which is connected by means of the tube 120 with the motor bellows 116 secured to the right hand end of the tracker 19.

By the above described arrangement a dual or coperating control is provided for each of the motor bellows 91 and. 116, so that it is only by aflectinghoth apertures of either pair that any effect can be produced on the corresponding motor bellows. A examinamedias:

tion of Figs. 4 to 7 inclusive will make this clear as to apertures 51 and52 and the motor bellows 91, while an examination of Figs/,8 to 11 inclusive will similarlyindicate the ielatirn of the apertures 53 and 54C The motor bellows 116 is provided with an arm 115, the outer end of which is con nected by means of the rod 114 to the lug 113 onthe sliding block 11. The other side of. the block is provided with a lug 102 which is connected by means of the rod 101 with'the link 97 The latter is pivoted at its center onthe bracket 98 secured to the tracker, and .is also connected at its outer end by means of the rod 05 to the outer end of the arm 92 appurtenant to the motor bellows 91. The inner end of'the link 9? is connected by the rod 99 to the lug 100, ap purtenant to the sliding block 12. The sliding block 41 is normally held in a central position upon its supporting shelf 103 by means of springs 101 and 10? (Figs. 12 and 13) which are secured to the shelf 103 and have their free ends in engagement with the opposite sides of the block all, each spring when at rest having one side in contact for the greater part of its length with the adjacent side of the shelf 103, thus releasing its pressure on the sliding block 41 as soon as the corresponding edges of the block and the; shelf coincide. Adjustable stop screws 108 and 109 appurtenant to the shelf 103 regulate and limit the movement of the block 11 in either direction by engaging the lug 110 appurtenant to the block.

Inthe normal position of the sheet as shown in Fig. 1, the two apertures 51 and 52 are both covered by the unperforated margins of the note sheet 18, while the two apertures 53 and 54. are both open to the atmosphere. The closed conditionof the two apertures 51 and 52 keeps the primary bellows Y67 and 68 both collapsed, so' that there is no communication between themotor bellows 91 and the exhaust chamber 71. lvhile the sheet is in its normal position the motor bellows 91 is thus allowed to remain partly open and is free to open still wider if desired. On'the other hand the two apertures 53 and 5. being open to the atmosphere keep the primary bellows 126 and 127 both inflated, so that the motor bellows 116 is cut off from communication with the exhaust chamber 125, thus leaving the motor bellows 116 at rest in a partly open condition, and free to open still wider ifrequired. j

Secured to one. side of the tracker 19 and preferably near its center, is the bracket 15 2 in which is ournaled the central portion preferably of the adjusting screw 151. Col-i lars or other meansai'e provided to prevent longitudinal movement ofthe screw in the bracket. The screw 151 has at either end threaded portions 154 155, the threads being right hand in one portion and left hand in the other. These threaded portions fit within the lugs 156 and 157, which are tapped out to receive them and are appurtenant to the support blocks and 56. A knob or head 153 is provided by which the screw may be rotated by hand to move the blocks 55 and 56 toward or from each other. This movement. permits the adjustment of the position of the apertures 51, 52, 53 and 5-1, to conform to the normal width of difien ent note sheets, this width varying some;

'what even among sheets of the same nominal width. The character of the paper, the atmospheric conditions in which it is perforated and the varying standards used by diii erent manufacturers are some of the causes of these difi erences in width.

' The operation of vtheparts is as follows The sheet 18 having been placed in position upon the rolls 21 and 22 and extending over the tracker 19, the adjusting screw 15.1 is turned to bring the two outer apertures 53 and 54; outside the edges e9 and. 50 respectively of the sheet, and the two inner apertures 51 and 52 inside their respective edges ofthe sheet; In making this adjustment the supporting blocks 55 and 56 slide toward or from each other in their seats in the uprights 27 and 28, the tracker 19 remaining station ary during this movement as the lug 152, in'

which the screw 151 is journaled against endwise movement, isfixed to the tracker and thus always keeps; the blocks 55 and equidistant from. the, lateral center of the tracker.

104 and 107 keep the block 41 centrally upon the shelf 103 appurtenant to the block 55.

The sliding block 12 also moves'uniformly' with the supporting block 56 on accountof the motion imparted to it by means of the connecting rod 99, the link 97, and the connecting rod 101. The motor bellows 91 and The supporting block carries thesliding block 41 with it as the springs 116 are opened or closed a little, as the case i may be by this adjiis tlng movement on account of their CODIIBCtlOlli-Vflill the sliding blocks 41 and 412 through'the connecting rods ll i-and 95. The mech'anism being set in motion, if the sheet diverges from itsnormal path to the left, for instance, the apertures cation with the exhaust chest 20, thus-collapsing the bellows and causing it to move to the left as the arm 31 is in-contact with the stationary lug 29. The bellow 33 being lined to the tracker L9 carries the letter with it, thus restoring-thenote-sounding aper-- &

, blocks 55 and 56 in which the tracker is seated, as well as the sliding blocks 41 and 42, also moving with the tracker on account of the connectionthrough the. screw 151. This motion therefore carries the apertures 39 and 51 again under the margin of the sheet, thus releasing the air pressure on the bellows 33, while the aperture 54 is restored to its normal position outside of the edge 50 of the sheet. Before this restoration takes place, however, the uncovering of the aperture 51 causes the primary bellows 67 .to expand (Fig. 6), thus raising the valve. 77, closing the outside air passage 80, and permitting the chambers 72 and 73 to exhaust through the passages 83 and 79. No further effect is produced, however, as the primary bellows 68 still remains collapsed on account of the covered condition of the aperture 52, and the restoring of the aperture 51 to its normal position inside the edge of the sheet permits the primary bellows 67 to again collapse (Fig. 4). Similarly, the closing of the aperture 54 operates only to collapse the primary bellows 127 (Fig. 11) and the, restoring of the aperture to its normal position permits the primary bellows 127't0 expand once more (Fig. 8). On the other hand, if the' sheet diverges to the right, so as to uncover the apertures 40'and 52 and cover the aperture 53, the tracker 19 willbe brought into proper register by the action of the motor'bellows 34. The uncovering of the aperture 52 produces no effect on-the primary bellows 68 as the chamber 73 fails to exhaust, being still in communication with the outside air through the passages 79 and 80. (Fig. 7.) Similarly the closing of the aperture 53 operates only to collapse the primary bellows 126 (Fig. 10) both bellows being restored to their normal conditions (Figs. 4 and 8) as soon as the tracker shifts.

If the sheet 18 expands instead of shifting, the apertures 53 and 54 will both be covered (Fig. 9).'thus causing the two primary bellows 126 and 127 to collapse. The collapsing of the former permits the pallet 134 to be pressed downward by the spring 135 against the outside opening 137, thereby exhausting the chamber 122 as the action of the spring 135 also causes the valve 133 to drop, and open the passage 138 between the chambers 1.22 and 125. The collapsing of the primary bellows 127 allows the valve 140 to drop, thus uncovering the passage 141 and causing the motor bellows 116 to collapse through its communication with the chamber 122 by the tube 120. The collapsing of the bellows 116 draws the sliding block 41 to the right along the shelf 103, the spring 104 yielding-to permit the block to move (Fig.3). The block 42 is moved correspondingiy to the left through the action of the connecting rod 101, thelink 97 and the-connecting rod 99,the motor bellows 91 being made to eX-pand still farther by'th-is action since the arm 92 is connected by the.

remain in this position as long as both aper tures 53 and 54 remaln covered by the margins of the sheet. As soon asv either one or both are again uncovered by the narrowing of the sheet or a sidewise change in its position, communication between the motor bellows 116 and the exhaust chamber 125 will be broken, thus allowing the springs 104 to slide the blocks 41 and 42 to their normal position.

If now the sheet 18 contracts ap preciably from normal width it will uncover the two apertures 51 and 52 (Fig. 5) and the two apertures 39 and 40. The primary bellows 67 will expand and cause the valve 77 to rise and close the opening 80 to the atmosphere, thus exhausting the chambers 72 and 73. The exhaustion of the latter chamber causes the primary bellows 68 to expand, since its interior' is open to the at mosphere through the tube 60-. The valve 84 will now rise so that it closes the opening 89 to the atmosphere, thereby allowing the chamber 74 to exhaust and causing the motor bellows 91, which is in communication with the chamber 74 through the tube 90, to collapse and draw the connecting rod to the left. This swings the link 97 on its pivot,

and causes the two blocks 41- and 42 to be drawn toward each other until the-perfora- -tions 39 and 40 are once more just within the edges 49 and 50 of the sheet 18, the spring 107 V yielding to permit the two blocks to move toward each other just as thespring 104 yielded to permit the blocks to separate. 1..

The parts will remain in this posit on as long as the apertures 51 and 52 remain uncovered by the edges of the sheet. As soon as they are again covered the two primary bellows 67 and 68 again collapse, thus out 1 ting off the bellows 91 from communication with the exhaust chamber 71, and thereby permitting the spring 107 to slide the blocks 41 and 42 once more to their normal position with the apertures 39 and 40 again in proper position, within thevedges of the sheet. The

. momentary uncovering of the apertures and 40 which takes place at the same time that the apertures ,51 and 52 are unco ad permits the two motor bellows 33 and exhaust and pull against each other; but 5 this action is at once terminated by the movement of the sliding blocks 41 and,42

which carry the apertures 39and 40.

The apertures 39, 40, 51 and 52 maybe,

Cir

and preferably are made long and narrow like the apertures 58 and since such a shaped duct will respond more quickly to slight variations in the paper. The ducts are herein shown of ditl'erent shapes, mainly order to enable them to be distinguished and kept in mind more readily. For the same reason, the two apertures 51 and 53 and the two apertures and 5a are shown to be farther apart than they would be plaeedin regular practice. 1

In Fig. 1 1 is shown modified form of enhaust chest 163, which'may'be used in place or the exhaust chest 65 of Figs. 1, 1, 5, 6 and '7. The exhaust chamber 165 is connected with the vacuum apparatus by the tube 166. The passage 171 connects the chamber 165 with the chamber 164. hen both apertures and 52 are closed, the passage 171 is closed atoneend by the valve 170 and at a other end by the valve 169. The stem the former valve rests upon the mo af of the primary bellow 168. l .r of this bellows is connected with tn 517' leading to the aperture Tl is appurtenant to the movable lea be primary bellows 167 connected to ,h e leading to the aperture A sprin holds the valve 169 against'the opening The uncoveringof the aperture 51 eX- 3 the bellow 168 and causes the valve to rise and close the opening 174 which cts the chamber 164; with the atmos- The uncovering of the aperture 52 UV M.

es the bellows 167 to expand and thereby a; v. draw the valve 169 frornthe opening 1 thus g'iermitting the chamber 164 to eX-' and collapse the motor bellows 91.

and thereby uncovering the passage 188 leadiug T130111 the exhaust chamber 182 to the chamber 181. When the bellows 184C collapses, the spring 169 raises the valve 186 by means of its stem 190, and closes the opening 191, thus permitting the chamber 181 to exhaust and collapse the motor bellows 116 through the tube 120. The closing of either aperture 53 or 54 alone will not operate the motor bellows 116, as the passage 188 will still be closed by either the valve 186 or the valve 187, and therefore the cham-. her 181 will not be exhausted.

Fig. 16 shows a modified form of exhaust be 200 which may be used in place of the bellows 205.

to the valve stem 211 is also lowered and I closes the opening 218 to the atmosphere, and permits the chamber 201 to exhaust. At the same time the expanding of the bellows 205 permits the valve 207 to drop as the stem 212 rests upon the movable leaf of the The motor bellows 91 is theretpre collapsed through its connection by the tube 90 with the chamber 101. The opening of either passage 51 or 52 alone, however, will not operate the motor'bellows 91, as either the passage 208 will be covered by the valve 210, or the end of the tube 90 will be covered by the valve 207.

It ill he noted that the two sets of primaries which operate the motorbellows are the reverse of each other in their mode of action. The primaries 67 and 68 are normally collapsed and act on the motor bellows 91 by expanding when the apertures 51 and are uncovered; whereas the primaries 126 and 127 are normally expanded and act upon the motor bellows 116 by collapsing when the apertures 53 are covered. This characteristic of the arrangement of the primary pneumatics whereby their ope ation requires the cooperation of two different apertures, constitutes a joint control device which is of great utility for many'other purposes than those herein described. Not only may this joint control be exercised by means of the margins of the sheet as herein shown, but it may be arranged'to operate in connection with a single perforation or a plurality of perforations. In Fig. 17 is shown an instance in which two apertures 193 and 191- corresponding to apertures 51 and 52 are arranged in succession in the oath of the same perforation 195 or the .note sheet 196. When this.perforation occupies the position shown in the drawing, both apertures are uncovered and the connected motor will therefore be operated. When the perforation is in the position corresponding longitudinally to 197 and 198, only one of the apertures is uncovered and the moto'ribellows will therefore not operate. p

In the forms of primary boxes shown in Figs. 8. and 11 and in Figs. 11-, 15 and 16, the motor p'neumatics 91 and 116 would require bleed .holes to enable them to eX- pand in some of the positions which the parts might assume after the exhaust has been cut off from the motor pneumatics. An arrangement is snown in Fig. 18 by which the expansion of the motors may be otherwise provided for. A flap valve 146 is'provided in the top of the box 121, and t- 1 phere through the passage 148. When the pin 147 is withdrawn the flap valve 146 closes so as to permit the bellows 91' to exhaust Whenever required.

If desired, the tracker 19 may be held in a fixed position in the uprights by means of the setscrews43; and then by loosening the set screws 44 the operation of the motor bellows 33 and 84 will shift the roll 21 sidewise instead of shifting the tracker, thus bringing the sheet and thetracker into proper relation as before. I

The terms upper, lower, right, left, etc. are here used intheir relative and not their absolute sense, as it is obvious that many of the parts of the apparatus may ,be altered, inverted or transposed according to the judgmentvof the designer or builder, without in anyway affecting the spirit of this invention.

It is also obvious that the apparatus may be made to work with pressure instead of exhaust by such changes in the arrangement of the parts as will readily suggest themselves to' the expected skill, knowledge or judgment of the maker,

The valve and bellows are herein shown conventionallv and more or less incomplete as to springs and other details. It is understood that these will be adapted and varied to suit various positions, and different conditions of service.

The function of the motor pneumatics being of a nature that does not require rapid action, the construction of the parts may accordingly vary somewhat from the usual forms.

I am aware also that many other changes can be made in the apparatus by any person skilled in the art without departing from the scope of the invention as expressed in the claims. Therefore 1 do not wish to be limited to all the details of construction shown and described, but

I claim as my invention:

1. The combination with a perforated traveling web and tracker, of pneumatic apparatus for shifting the relative positions of the web and tracker, the tracker having a plurality of ducts arranged adjacent to the edges of the web when in operation on the tracker, a pneumatic motor, and means not controlled by the ducts along either edge alone, but controlled by the ductsalong both edges in cooperation for inaugurating the operation of the motor.

2. The combination of a tracker, means for drawing a web over the tracker, pneumatic apparatus for adjusting the lateral relation between the tracker and web, a guide open1ng connected to 'control the operation of said apparatus, 'and'mean's for automatically adjusting said guide ppening laterally so that the same will cooperate with webs .of different. widths.

' 3. The fcombination, in pneumatic apparatus ofa pneumatic motor; a pair of I ducts, and means controlled by the. coincident covering of the ducts for inaugurating the operation of the pneumatic motor.

4. The combination,"-' in pneumatic apparatus, of a pneumatic motor, a pair of ducts, and means inoperative by the separate uncovering of the ducts, but operative by the coincident uncovering of the ducts for inaugurating the operation of the pneu matic motor. I 5. The comblnation of a tracker, means for drawing a web over the tracker, pneupairs of openings, each pair arranged so that one will come under the edge of the web and the otheroutside of the web, and pneumatic apparatus connected to said two pairs of openings and arranged to adjust the guide openings.

7. The combination of a tracker, means for drawing a web over the tracker, pneuso I Tmatic apparatus for adjusting the lateral relation between the tracker and web, two a matic apparatus for adjusting the lateral relation between the tracker and web, two guide openings connected to control the operation of said apparatus, and means for adjusting said guide openingslaterally of the web so that the same will cooperate with webs of different widths, comprising two pairs of openings, each pair arranged so that one will come under the edge of the web and the other outside of the web, valve apparatus controlled by said two pairs of openings, and pneumatic apparatus controlled thereby and connected to adjust the guide openings.

8. The combination. with a traveling sheet or web, of means for guiding or restoring the web to its desired path when di erted therefrom, and means contacting with the surface of the Web and held out of operation while the Web is of normal width, for moving the restoring means into operable relation to the web upon the lateral expansion of the latter.

9. The combination, with a traveling sheet or web, of means for guiding or restoring in inoperative relation by the sheet when in the web to its desired path when diverted, its normal position for restoring the normal therefrom, and means centacting'w it'h the surface of the web and held out of operation while the web is of normal width, for movingthe restoring means into operable relatioh-To the web upon the lateralcontraction of the latter.

-10. The combination, with a traveling sheet 6:. web, of means .for guiding or restoring the web to its"desired, path when diverted therefrom, means contacting with the surface of the web and held out of operation while the web is of normal width, for moving the restoring means into operable relation to theweb upon the lateral expansion or contraction of the latter.

11. The combination, with i a traveling sheet or web, of means for guiding or restoring the web to its desired path when diverted therefrom, of means for moving the restoring means into operable relation to the web when the latter expands or contracts laterally, and means, contacting with the surface of the web and held out of operation when the web is of normal width,

'for inaugurating the operation of the moving means.

1:2. The combination with a tracker and a traveling sheet or web, ofmeans for guiding or restoring the web to its desired path when diverted therefrom, means for moving the restoring means into operable relation to the web when the latter expands or contracts laterally, and means contacting with the marginal surface of the web and held out of operative relation thereby when the web is of normal width, for inaugurating the operation of the moving means.

13. The-combination with an apparatus employing a traveling sheet or web, of means for guiding or restoring the web to its desired path when diverted therefrom, means for inaugurating the operation of the roster ing means and held out of operative relation therewith by the margin of the sheet when the sheetis traveling in its desired path, and means for moving the inaugurating means into operable relation with the margin of the sheet when the latter expands or contracts laterally.

1-4. The combination, with a traveling sheet or web, of a tracker, means maintained in inoperative condition by the sheet when in its normal position for restoring the normal relation of the sheet and the tracker when uncovered by either edge of the sheet, and means for moving the restoring means into proper relation to the'edges of the sheet when the latter expands or contracts laterally, said moving means being'maintained in inoperative relation by the sheet when the latter is of normal width.

15. The combination, with a traveling sheet or web, of a tracker, means maintained relation of the sheet and the tracker when uncovered by either edge of the sheet, con tact devices one at each end of the tracker arranged adjacent to and inside of the nor mal position of the edges of the sheet. when the sheet is of normal width, so as to be 1 covered by the mar 'inal surface of the sheet when the latter is in its normal position, and means operable by the uncovering of the contact devices for moving the restoring means .inward into proper relation to the bdges of the sheet. 1 16. The. combination, with a traveling sheet or web, of a tracker, means maintained tive relation by thesheet when in its normal position for restoring the normal relation of the sheet and the tracker when uncovered by either edge of the sheet, contact devices one at each end of "the tracker arranged adjacent to and outside of the nor mal position of the edges of the sheet when the sheet is of normal. width, so as to be left uncovered by the marginal surface of the sheet when the latter is in its normal position, and means operable by the covering 'of the contact devices for moving the,

restoring means outward into proper tion to the edges of the sheet.

17. The combination, with a traveling sheet or web, of,a tracker, means maintained in inoperative relation by the sheet when in its normal position for restoring the normal relation of the sheet and the tracker when uncovered by either edge of the sheet. contact devices one at each end of the tracker arranged adjacent to and inside of thenormal positionof the' cdges of the sheet when thesheet' is of normal width, so as to be covered by the marginal surface of the sheet when the latter is in its normal position, contact devices one at each end of the tracker arranged adjacent to and outside of the normal position of the edges of the sheet when the sheet is of normal width, so as to be uncoveredby the marginal surface of the sheet when the latter is in its normal position, and means operable by theuncovering of the first contacts for moving the restoring means inward or by the covering of the second contacts, for moving the restoring means outwardyinto proper relation to the edges of I the sheet. i

18. The combination, with a traveling sheet or web, of a tracker, means maintained rel ain inoperative relation by the sheet when in? its normal position, for restoring the normal relation of the sheet and "the tracker when uncovered by either edge of the sheet,.pneumatic devices for moving the restoring means into proper relation to the edges of the sheet when the latter expands or contracts laterally, a pairof contact devices, one at each end of the tracker, located inside the normal position of the edges of the sheet when the sheet is of normal width, and a pair of contact devices one at each end of the tracker, located outside-the normal position otthe edges of the sheet when the sheet is of normal width, the operation of the )neumatic devices bein inau urated b the.

lateral contraction of the web in uncovering one pair of contact devices, or by the lateral expansion of the web in covering the other pair of contact devices.

19. The combination, with a traveling sheet or. web, of a tracker, means maintained in operative relation by the sheet when-in its normal position for restoring the normal relation of the sheet and the tracker when uncovered byeither edge of the sheet, pneumatic devices for moving the restoring means-into proper relation to the edges of the sheet when the latter expands or contracts-laterally, a pair of contact devices,

one at each end of the tracker, located inside the normal position of the edges of the sheet when the sheet is of normal width, a pair of contact devices one at each end of the tracker, loc, ted outside the normal position of the edges of the sheet when the sheet is? "of normal width,'the operation of the pneumatic devices being inaugurated by the lateral contraction of the web in uncovering one pair .ot' contact devices, or bytbe lateral expansion of the webin covering the other pair of contact devices, and means for varying the relative positions of the two pairs of contact devices to provide for webs of different normal widths 20.The combination of pneumatic pressure producing devices, a motor bellows, a communication fromthe pressure producing devices to the motor bellows, a perforated traveling web, a tracker, means for shifting the relative positions of the web andtracker communicating with said pressure producing devices, two primary bellows provided with. independent operating passages normally closed to the atmosphere, and cooperating to open the said communication only when both passages are open to the atmosbellows, providedwith independent operat-.'

ing passages normally closed to theatmosphe're, andmeans operated by the twojprimary bellows whereby the openingof both collapse the motor bellows.

passages to the atmosphere is required to operate the motor bellows.

23. The combination, in pneumatic devices,of a motor bellows,and means including a pneumatic primary box for operating the motor bellows, containing two primary bellows provided with independent operating passages normally open to the atmosphere, and means operated by the two primary bellows, whereby the closing of both passages to the atmosphere is required to operate the motor bellows.

24. The combination in pneumatic devices of a vacuum chamber, an air chamber, a passage between the said chambers, a passageto the atmosphere from the air chamber, a motor bellows communicating with the air chamber, a pair of operating ducts,

a pair of primary pneumatics in the vacuum chamber communicating with the said ducts, and valves operated by the primary pneumatics and jointly controlling the communication between the vacuum, chamber and the said motor, whereby the contemporaneous action of the two primary pneumatics is required to collapse the motor bellows.

25. The combination in pneumatic devices of a vacuum chamber, an air chamber,

i a passage between the said chambers, a passage to the atmosphere from the air chamber, a motor bellows communicating with the air chamber, a pair of operating duct-s, a

pair of, primary-pneumatics in the vacuum chamber connected with the said ducts, and

a valve operated by the primary pneumatics and jointly controlling the passages between the vacuum chamber and the motor bellows,

wherebythe contemporaneous collapsing of the two primary pneumatics is required to 26. The .combination in pneumatic devices of a vacuum chamber, an air chamber,

a motor bellows, passages connecting the vacuum chamber, air chamber and motor bellows, a passage to the atmosphere from the air chamber, a pair of operating ducts, a

pair of primary pneumatics 1n the vacuum chamber communicating with the said ducts, and valves operated by the said primary pneumatics for opening and closing the said passages, and thereby jointly controlling the operation of the motorloellows.

' 27. The combination in pneumatic devices of a vacuum chamber, an air chamber,

a motor bellows, passages connecting -the vacuum chamber, air chamber and motor. bellows, a passage to the atmosphere from the air chamber, a pair of controlling ducts, a pair of primary pneumatics in the vacuum chamber communicating with the said ducts, a valve in the air chamber connected to one of-the primary pneumatics and operating to close the vacuum passage when its pneu- ,matic is expanded and to close the atmosphe'rel passage when its pneumatic is 001- 1 lapsed, and a valve in the vacuum chamber connected to the other primary pneumatic and operating to close the passage leading tothe air chamber when the pneumatic is expanded.

28. The combination in an instrument of the class specified, of a tracker provided with a series of note ducts and with an adjacent guide opening, and automatic means for adjusting the position of the said guide openings longitudinally, relativelyto the adjacent series of note ducts.

29. The combination in an instrument of the class specified, of a tracker, provided with a guide'opening, automatic means and 15 manually operated means for adjusting the said opening laterally of the sheet.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

JAMES OCONNOR.

Witnesses:

ROBERT K. OCQNNOR, WM. H. Honiss. 

